./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b846ac-c988-42ef-882a-8a7d7cb8ccf3/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b846ac-c988-42ef-882a-8a7d7cb8ccf3/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b846ac-c988-42ef-882a-8a7d7cb8ccf3/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b846ac-c988-42ef-882a-8a7d7cb8ccf3/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b846ac-c988-42ef-882a-8a7d7cb8ccf3/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b846ac-c988-42ef-882a-8a7d7cb8ccf3/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 11:58:09,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:58:09,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:58:09,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:58:09,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:58:09,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:58:09,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:58:09,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:58:09,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:58:09,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:58:09,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:58:09,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:58:09,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:58:09,249 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:58:09,250 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:58:09,251 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:58:09,252 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:58:09,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:58:09,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:58:09,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:58:09,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:58:09,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:58:09,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:58:09,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:58:09,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:58:09,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:58:09,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:58:09,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:58:09,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:58:09,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:58:09,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:58:09,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:58:09,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:58:09,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:58:09,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:58:09,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:58:09,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:58:09,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:58:09,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:58:09,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:58:09,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:58:09,273 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b846ac-c988-42ef-882a-8a7d7cb8ccf3/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 11:58:09,293 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:58:09,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:58:09,293 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:58:09,293 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:58:09,294 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:58:09,294 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:58:09,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:58:09,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:58:09,295 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:58:09,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:58:09,295 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:58:09,295 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:58:09,296 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:58:09,296 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:58:09,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:58:09,296 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:58:09,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:58:09,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:58:09,297 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 11:58:09,297 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:58:09,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:58:09,297 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:58:09,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:58:09,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:58:09,298 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:58:09,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:58:09,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:58:09,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:58:09,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:58:09,298 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:58:09,299 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:58:09,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:58:09,299 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:58:09,299 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:58:09,299 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:58:09,299 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:58:09,299 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:58:09,300 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b846ac-c988-42ef-882a-8a7d7cb8ccf3/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b846ac-c988-42ef-882a-8a7d7cb8ccf3/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c [2022-12-13 11:58:09,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:58:09,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:58:09,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:58:09,499 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:58:09,499 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:58:09,500 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b846ac-c988-42ef-882a-8a7d7cb8ccf3/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2022-12-13 11:58:12,149 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:58:12,379 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:58:12,379 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b846ac-c988-42ef-882a-8a7d7cb8ccf3/sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2022-12-13 11:58:12,393 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b846ac-c988-42ef-882a-8a7d7cb8ccf3/bin/uautomizer-uyxdKDjOR8/data/c73acf8f2/e8e68547ee24448c90b39fda2d3cc139/FLAG251c81643 [2022-12-13 11:58:12,404 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b846ac-c988-42ef-882a-8a7d7cb8ccf3/bin/uautomizer-uyxdKDjOR8/data/c73acf8f2/e8e68547ee24448c90b39fda2d3cc139 [2022-12-13 11:58:12,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:58:12,408 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:58:12,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:58:12,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:58:12,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:58:12,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:58:12" (1/1) ... [2022-12-13 11:58:12,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f295c45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:58:12, skipping insertion in model container [2022-12-13 11:58:12,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:58:12" (1/1) ... [2022-12-13 11:58:12,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:58:12,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:58:12,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:58:12,849 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:58:12,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:58:12,952 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:58:12,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:58:12 WrapperNode [2022-12-13 11:58:12,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:58:12,953 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:58:12,953 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:58:12,953 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:58:12,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:58:12" (1/1) ... [2022-12-13 11:58:12,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:58:12" (1/1) ... [2022-12-13 11:58:12,992 INFO L138 Inliner]: procedures = 368, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 172 [2022-12-13 11:58:12,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:58:12,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:58:12,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:58:12,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:58:13,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:58:12" (1/1) ... [2022-12-13 11:58:13,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:58:12" (1/1) ... [2022-12-13 11:58:13,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:58:12" (1/1) ... [2022-12-13 11:58:13,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:58:12" (1/1) ... [2022-12-13 11:58:13,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:58:12" (1/1) ... [2022-12-13 11:58:13,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:58:12" (1/1) ... [2022-12-13 11:58:13,017 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:58:12" (1/1) ... [2022-12-13 11:58:13,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:58:12" (1/1) ... [2022-12-13 11:58:13,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:58:13,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:58:13,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:58:13,021 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:58:13,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:58:12" (1/1) ... [2022-12-13 11:58:13,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:58:13,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b846ac-c988-42ef-882a-8a7d7cb8ccf3/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:58:13,047 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b846ac-c988-42ef-882a-8a7d7cb8ccf3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:58:13,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b846ac-c988-42ef-882a-8a7d7cb8ccf3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:58:13,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:58:13,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 11:58:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:58:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 11:58:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 11:58:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 11:58:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 11:58:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:58:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 11:58:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 11:58:13,083 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 11:58:13,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:58:13,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:58:13,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:58:13,085 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 11:58:13,208 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:58:13,210 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:58:13,529 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:58:13,537 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:58:13,537 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 11:58:13,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:58:13 BoogieIcfgContainer [2022-12-13 11:58:13,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:58:13,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:58:13,542 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:58:13,545 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:58:13,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:58:12" (1/3) ... [2022-12-13 11:58:13,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a1279e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:58:13, skipping insertion in model container [2022-12-13 11:58:13,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:58:12" (2/3) ... [2022-12-13 11:58:13,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a1279e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:58:13, skipping insertion in model container [2022-12-13 11:58:13,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:58:13" (3/3) ... [2022-12-13 11:58:13,548 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_02-list_nr.i [2022-12-13 11:58:13,557 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 11:58:13,568 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:58:13,568 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-12-13 11:58:13,568 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 11:58:13,645 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 11:58:13,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 208 places, 204 transitions, 413 flow [2022-12-13 11:58:13,772 INFO L130 PetriNetUnfolder]: 0/203 cut-off events. [2022-12-13 11:58:13,772 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:58:13,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 203 events. 0/203 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 85 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-13 11:58:13,775 INFO L82 GeneralOperation]: Start removeDead. Operand has 208 places, 204 transitions, 413 flow [2022-12-13 11:58:13,781 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 207 places, 203 transitions, 409 flow [2022-12-13 11:58:13,784 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 11:58:13,795 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 207 places, 203 transitions, 409 flow [2022-12-13 11:58:13,798 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 207 places, 203 transitions, 409 flow [2022-12-13 11:58:13,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 207 places, 203 transitions, 409 flow [2022-12-13 11:58:13,841 INFO L130 PetriNetUnfolder]: 0/203 cut-off events. [2022-12-13 11:58:13,841 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:58:13,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 203 events. 0/203 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 85 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-13 11:58:13,844 INFO L119 LiptonReduction]: Number of co-enabled transitions 4288 [2022-12-13 11:58:57,767 WARN L233 SmtUtils]: Spent 13.16s on a formula simplification that was a NOOP. DAG size: 224 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:59:06,618 WARN L233 SmtUtils]: Spent 8.85s on a formula simplification that was a NOOP. DAG size: 200 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:59:40,044 WARN L233 SmtUtils]: Spent 33.42s on a formula simplification. DAG size of input: 263 DAG size of output: 261 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:00:00,325 WARN L233 SmtUtils]: Spent 20.28s on a formula simplification that was a NOOP. DAG size: 251 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:00:54,906 WARN L233 SmtUtils]: Spent 54.58s on a formula simplification. DAG size of input: 263 DAG size of output: 261 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:01:25,147 WARN L233 SmtUtils]: Spent 30.24s on a formula simplification that was a NOOP. DAG size: 251 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:01:25,833 INFO L134 LiptonReduction]: Checked pairs total: 35055 [2022-12-13 12:01:25,834 INFO L136 LiptonReduction]: Total number of compositions: 164 [2022-12-13 12:01:25,844 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:01:25,848 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@478e7e3d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:01:25,848 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-12-13 12:01:25,849 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 12:01:25,849 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:01:25,849 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:01:25,849 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 12:01:25,850 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:01:25,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:01:25,853 INFO L85 PathProgramCache]: Analyzing trace with hash 665, now seen corresponding path program 1 times [2022-12-13 12:01:25,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:01:25,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161696189] [2022-12-13 12:01:25,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:01:25,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:01:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:01:25,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:01:25,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:01:25,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161696189] [2022-12-13 12:01:25,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161696189] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:01:25,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:01:25,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 12:01:25,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067987743] [2022-12-13 12:01:25,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:01:25,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 12:01:25,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:01:25,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 12:01:25,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:01:25,959 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 368 [2022-12-13 12:01:25,960 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 73 transitions, 149 flow. Second operand has 2 states, 2 states have (on average 203.5) internal successors, (407), 2 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:25,961 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:01:25,961 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 368 [2022-12-13 12:01:25,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:01:26,111 INFO L130 PetriNetUnfolder]: 78/405 cut-off events. [2022-12-13 12:01:26,111 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:01:26,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 587 conditions, 405 events. 78/405 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1935 event pairs, 78 based on Foata normal form. 0/364 useless extension candidates. Maximal degree in co-relation 578. Up to 178 conditions per place. [2022-12-13 12:01:26,116 INFO L137 encePairwiseOnDemand]: 360/368 looper letters, 21 selfloop transitions, 0 changer transitions 0/65 dead transitions. [2022-12-13 12:01:26,116 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 65 transitions, 175 flow [2022-12-13 12:01:26,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 12:01:26,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 12:01:26,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 435 transitions. [2022-12-13 12:01:26,129 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5910326086956522 [2022-12-13 12:01:26,129 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 435 transitions. [2022-12-13 12:01:26,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 435 transitions. [2022-12-13 12:01:26,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:01:26,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 435 transitions. [2022-12-13 12:01:26,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 217.5) internal successors, (435), 2 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:26,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 368.0) internal successors, (1104), 3 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:26,145 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 368.0) internal successors, (1104), 3 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:26,146 INFO L175 Difference]: Start difference. First operand has 77 places, 73 transitions, 149 flow. Second operand 2 states and 435 transitions. [2022-12-13 12:01:26,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 65 transitions, 175 flow [2022-12-13 12:01:26,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 65 transitions, 174 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 12:01:26,152 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 132 flow [2022-12-13 12:01:26,154 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=132, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2022-12-13 12:01:26,157 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, -8 predicate places. [2022-12-13 12:01:26,157 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 132 flow [2022-12-13 12:01:26,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 203.5) internal successors, (407), 2 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:26,158 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:01:26,158 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 12:01:26,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:01:26,159 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:01:26,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:01:26,159 INFO L85 PathProgramCache]: Analyzing trace with hash 636354724, now seen corresponding path program 1 times [2022-12-13 12:01:26,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:01:26,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034040095] [2022-12-13 12:01:26,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:01:26,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:01:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:01:26,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:01:26,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:01:26,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034040095] [2022-12-13 12:01:26,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034040095] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:01:26,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:01:26,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:01:26,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422395513] [2022-12-13 12:01:26,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:01:26,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:01:26,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:01:26,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:01:26,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:01:26,369 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 368 [2022-12-13 12:01:26,369 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:26,370 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:01:26,370 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 368 [2022-12-13 12:01:26,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:01:26,493 INFO L130 PetriNetUnfolder]: 119/489 cut-off events. [2022-12-13 12:01:26,493 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:01:26,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 758 conditions, 489 events. 119/489 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2337 event pairs, 119 based on Foata normal form. 0/466 useless extension candidates. Maximal degree in co-relation 755. Up to 264 conditions per place. [2022-12-13 12:01:26,496 INFO L137 encePairwiseOnDemand]: 364/368 looper letters, 25 selfloop transitions, 1 changer transitions 0/62 dead transitions. [2022-12-13 12:01:26,497 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 62 transitions, 178 flow [2022-12-13 12:01:26,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:01:26,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:01:26,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 590 transitions. [2022-12-13 12:01:26,500 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5344202898550725 [2022-12-13 12:01:26,500 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 590 transitions. [2022-12-13 12:01:26,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 590 transitions. [2022-12-13 12:01:26,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:01:26,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 590 transitions. [2022-12-13 12:01:26,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 196.66666666666666) internal successors, (590), 3 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:26,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:26,506 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:26,506 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 132 flow. Second operand 3 states and 590 transitions. [2022-12-13 12:01:26,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 62 transitions, 178 flow [2022-12-13 12:01:26,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 62 transitions, 178 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 12:01:26,508 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 128 flow [2022-12-13 12:01:26,509 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2022-12-13 12:01:26,509 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, -9 predicate places. [2022-12-13 12:01:26,509 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 128 flow [2022-12-13 12:01:26,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:26,510 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:01:26,510 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:01:26,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:01:26,511 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:01:26,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:01:26,511 INFO L85 PathProgramCache]: Analyzing trace with hash 761510997, now seen corresponding path program 1 times [2022-12-13 12:01:26,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:01:26,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781276214] [2022-12-13 12:01:26,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:01:26,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:01:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:01:27,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:01:27,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:01:27,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781276214] [2022-12-13 12:01:27,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781276214] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:01:27,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:01:27,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:01:27,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491084101] [2022-12-13 12:01:27,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:01:27,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:01:27,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:01:27,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:01:27,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:01:27,262 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 368 [2022-12-13 12:01:27,264 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:27,264 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:01:27,264 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 368 [2022-12-13 12:01:27,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:01:27,574 INFO L130 PetriNetUnfolder]: 419/1084 cut-off events. [2022-12-13 12:01:27,574 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:01:27,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1976 conditions, 1084 events. 419/1084 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5336 event pairs, 312 based on Foata normal form. 0/1039 useless extension candidates. Maximal degree in co-relation 1972. Up to 802 conditions per place. [2022-12-13 12:01:27,579 INFO L137 encePairwiseOnDemand]: 354/368 looper letters, 66 selfloop transitions, 37 changer transitions 0/122 dead transitions. [2022-12-13 12:01:27,580 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 122 transitions, 454 flow [2022-12-13 12:01:27,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:01:27,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 12:01:27,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1022 transitions. [2022-12-13 12:01:27,582 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4628623188405797 [2022-12-13 12:01:27,582 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1022 transitions. [2022-12-13 12:01:27,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1022 transitions. [2022-12-13 12:01:27,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:01:27,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1022 transitions. [2022-12-13 12:01:27,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 170.33333333333334) internal successors, (1022), 6 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:27,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 368.0) internal successors, (2576), 7 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:27,590 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 368.0) internal successors, (2576), 7 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:27,590 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 128 flow. Second operand 6 states and 1022 transitions. [2022-12-13 12:01:27,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 122 transitions, 454 flow [2022-12-13 12:01:27,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 122 transitions, 453 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 12:01:27,593 INFO L231 Difference]: Finished difference. Result has 76 places, 98 transitions, 339 flow [2022-12-13 12:01:27,593 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=339, PETRI_PLACES=76, PETRI_TRANSITIONS=98} [2022-12-13 12:01:27,594 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, -1 predicate places. [2022-12-13 12:01:27,594 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 98 transitions, 339 flow [2022-12-13 12:01:27,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:27,595 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:01:27,595 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:01:27,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 12:01:27,596 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:01:27,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:01:27,596 INFO L85 PathProgramCache]: Analyzing trace with hash 911746263, now seen corresponding path program 1 times [2022-12-13 12:01:27,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:01:27,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327796690] [2022-12-13 12:01:27,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:01:27,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:01:27,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:01:27,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:01:27,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:01:27,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327796690] [2022-12-13 12:01:27,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327796690] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:01:27,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:01:27,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:01:27,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114201749] [2022-12-13 12:01:27,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:01:27,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:01:27,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:01:27,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:01:27,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:01:28,167 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 368 [2022-12-13 12:01:28,168 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 98 transitions, 339 flow. Second operand has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:28,168 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:01:28,168 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 368 [2022-12-13 12:01:28,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:01:28,711 INFO L130 PetriNetUnfolder]: 622/1669 cut-off events. [2022-12-13 12:01:28,711 INFO L131 PetriNetUnfolder]: For 233/246 co-relation queries the response was YES. [2022-12-13 12:01:28,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3630 conditions, 1669 events. 622/1669 cut-off events. For 233/246 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 9974 event pairs, 78 based on Foata normal form. 0/1574 useless extension candidates. Maximal degree in co-relation 3622. Up to 707 conditions per place. [2022-12-13 12:01:28,720 INFO L137 encePairwiseOnDemand]: 340/368 looper letters, 135 selfloop transitions, 77 changer transitions 0/246 dead transitions. [2022-12-13 12:01:28,721 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 246 transitions, 1150 flow [2022-12-13 12:01:28,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:01:28,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 12:01:28,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1096 transitions. [2022-12-13 12:01:28,724 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4963768115942029 [2022-12-13 12:01:28,724 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1096 transitions. [2022-12-13 12:01:28,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1096 transitions. [2022-12-13 12:01:28,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:01:28,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1096 transitions. [2022-12-13 12:01:28,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 182.66666666666666) internal successors, (1096), 6 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:28,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 368.0) internal successors, (2576), 7 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:28,732 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 368.0) internal successors, (2576), 7 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:28,732 INFO L175 Difference]: Start difference. First operand has 76 places, 98 transitions, 339 flow. Second operand 6 states and 1096 transitions. [2022-12-13 12:01:28,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 246 transitions, 1150 flow [2022-12-13 12:01:28,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 246 transitions, 1150 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 12:01:28,741 INFO L231 Difference]: Finished difference. Result has 85 places, 171 transitions, 913 flow [2022-12-13 12:01:28,741 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=913, PETRI_PLACES=85, PETRI_TRANSITIONS=171} [2022-12-13 12:01:28,742 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 8 predicate places. [2022-12-13 12:01:28,742 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 171 transitions, 913 flow [2022-12-13 12:01:28,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:28,743 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:01:28,743 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:01:28,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 12:01:28,743 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:01:28,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:01:28,744 INFO L85 PathProgramCache]: Analyzing trace with hash -858975864, now seen corresponding path program 1 times [2022-12-13 12:01:28,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:01:28,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376144138] [2022-12-13 12:01:28,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:01:28,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:01:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:01:29,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:01:29,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:01:29,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376144138] [2022-12-13 12:01:29,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376144138] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:01:29,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:01:29,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 12:01:29,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226099417] [2022-12-13 12:01:29,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:01:29,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 12:01:29,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:01:29,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 12:01:29,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:01:29,934 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 368 [2022-12-13 12:01:29,935 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 171 transitions, 913 flow. Second operand has 10 states, 10 states have (on average 150.2) internal successors, (1502), 10 states have internal predecessors, (1502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:29,935 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:01:29,935 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 368 [2022-12-13 12:01:29,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:01:30,870 INFO L130 PetriNetUnfolder]: 743/1912 cut-off events. [2022-12-13 12:01:30,870 INFO L131 PetriNetUnfolder]: For 1447/1455 co-relation queries the response was YES. [2022-12-13 12:01:30,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5654 conditions, 1912 events. 743/1912 cut-off events. For 1447/1455 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 11395 event pairs, 245 based on Foata normal form. 0/1845 useless extension candidates. Maximal degree in co-relation 5641. Up to 1219 conditions per place. [2022-12-13 12:01:30,880 INFO L137 encePairwiseOnDemand]: 354/368 looper letters, 235 selfloop transitions, 64 changer transitions 2/335 dead transitions. [2022-12-13 12:01:30,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 335 transitions, 2307 flow [2022-12-13 12:01:30,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 12:01:30,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 12:01:30,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2423 transitions. [2022-12-13 12:01:30,890 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4389492753623188 [2022-12-13 12:01:30,890 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2423 transitions. [2022-12-13 12:01:30,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2423 transitions. [2022-12-13 12:01:30,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:01:30,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2423 transitions. [2022-12-13 12:01:30,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 161.53333333333333) internal successors, (2423), 15 states have internal predecessors, (2423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:30,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 368.0) internal successors, (5888), 16 states have internal predecessors, (5888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:30,914 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 368.0) internal successors, (5888), 16 states have internal predecessors, (5888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:30,914 INFO L175 Difference]: Start difference. First operand has 85 places, 171 transitions, 913 flow. Second operand 15 states and 2423 transitions. [2022-12-13 12:01:30,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 335 transitions, 2307 flow [2022-12-13 12:01:30,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 335 transitions, 2289 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-12-13 12:01:30,936 INFO L231 Difference]: Finished difference. Result has 104 places, 203 transitions, 1299 flow [2022-12-13 12:01:30,937 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1299, PETRI_PLACES=104, PETRI_TRANSITIONS=203} [2022-12-13 12:01:30,937 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 27 predicate places. [2022-12-13 12:01:30,937 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 203 transitions, 1299 flow [2022-12-13 12:01:30,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 150.2) internal successors, (1502), 10 states have internal predecessors, (1502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:30,939 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:01:30,939 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:01:30,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 12:01:30,939 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:01:30,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:01:30,939 INFO L85 PathProgramCache]: Analyzing trace with hash 471103678, now seen corresponding path program 1 times [2022-12-13 12:01:30,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:01:30,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131422565] [2022-12-13 12:01:30,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:01:30,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:01:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:01:31,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:01:31,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:01:31,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131422565] [2022-12-13 12:01:31,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131422565] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:01:31,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:01:31,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 12:01:31,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587385236] [2022-12-13 12:01:31,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:01:31,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 12:01:31,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:01:31,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 12:01:31,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:01:31,942 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 368 [2022-12-13 12:01:31,943 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 203 transitions, 1299 flow. Second operand has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:31,943 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:01:31,943 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 368 [2022-12-13 12:01:31,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:01:32,808 INFO L130 PetriNetUnfolder]: 774/2149 cut-off events. [2022-12-13 12:01:32,808 INFO L131 PetriNetUnfolder]: For 2147/2178 co-relation queries the response was YES. [2022-12-13 12:01:32,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6872 conditions, 2149 events. 774/2149 cut-off events. For 2147/2178 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 14293 event pairs, 111 based on Foata normal form. 19/2091 useless extension candidates. Maximal degree in co-relation 6853. Up to 622 conditions per place. [2022-12-13 12:01:32,819 INFO L137 encePairwiseOnDemand]: 336/368 looper letters, 261 selfloop transitions, 121 changer transitions 2/424 dead transitions. [2022-12-13 12:01:32,819 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 424 transitions, 3169 flow [2022-12-13 12:01:32,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 12:01:32,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 12:01:32,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2056 transitions. [2022-12-13 12:01:32,827 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46557971014492755 [2022-12-13 12:01:32,827 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2056 transitions. [2022-12-13 12:01:32,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2056 transitions. [2022-12-13 12:01:32,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:01:32,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2056 transitions. [2022-12-13 12:01:32,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 171.33333333333334) internal successors, (2056), 12 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:32,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 368.0) internal successors, (4784), 13 states have internal predecessors, (4784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:32,834 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 368.0) internal successors, (4784), 13 states have internal predecessors, (4784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:32,834 INFO L175 Difference]: Start difference. First operand has 104 places, 203 transitions, 1299 flow. Second operand 12 states and 2056 transitions. [2022-12-13 12:01:32,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 424 transitions, 3169 flow [2022-12-13 12:01:32,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 424 transitions, 3157 flow, removed 6 selfloop flow, removed 0 redundant places. [2022-12-13 12:01:32,846 INFO L231 Difference]: Finished difference. Result has 125 places, 258 transitions, 2206 flow [2022-12-13 12:01:32,847 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=1293, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2206, PETRI_PLACES=125, PETRI_TRANSITIONS=258} [2022-12-13 12:01:32,847 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 48 predicate places. [2022-12-13 12:01:32,847 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 258 transitions, 2206 flow [2022-12-13 12:01:32,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:32,848 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:01:32,848 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:01:32,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 12:01:32,848 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:01:32,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:01:32,848 INFO L85 PathProgramCache]: Analyzing trace with hash 819510542, now seen corresponding path program 2 times [2022-12-13 12:01:32,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:01:32,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219687141] [2022-12-13 12:01:32,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:01:32,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:01:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:01:33,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:01:33,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:01:33,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219687141] [2022-12-13 12:01:33,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219687141] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:01:33,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:01:33,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 12:01:33,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168394186] [2022-12-13 12:01:33,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:01:33,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 12:01:33,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:01:33,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 12:01:33,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:01:33,855 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 368 [2022-12-13 12:01:33,857 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 258 transitions, 2206 flow. Second operand has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:33,857 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:01:33,857 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 368 [2022-12-13 12:01:33,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:01:34,959 INFO L130 PetriNetUnfolder]: 828/2278 cut-off events. [2022-12-13 12:01:34,959 INFO L131 PetriNetUnfolder]: For 4705/4730 co-relation queries the response was YES. [2022-12-13 12:01:34,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8608 conditions, 2278 events. 828/2278 cut-off events. For 4705/4730 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 15201 event pairs, 95 based on Foata normal form. 24/2210 useless extension candidates. Maximal degree in co-relation 8579. Up to 722 conditions per place. [2022-12-13 12:01:34,971 INFO L137 encePairwiseOnDemand]: 343/368 looper letters, 336 selfloop transitions, 116 changer transitions 3/495 dead transitions. [2022-12-13 12:01:34,972 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 495 transitions, 4591 flow [2022-12-13 12:01:34,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 12:01:34,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 12:01:34,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2923 transitions. [2022-12-13 12:01:34,975 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44127415458937197 [2022-12-13 12:01:34,976 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2923 transitions. [2022-12-13 12:01:34,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2923 transitions. [2022-12-13 12:01:34,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:01:34,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2923 transitions. [2022-12-13 12:01:34,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 162.38888888888889) internal successors, (2923), 18 states have internal predecessors, (2923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:34,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 368.0) internal successors, (6992), 19 states have internal predecessors, (6992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:34,986 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 368.0) internal successors, (6992), 19 states have internal predecessors, (6992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:34,986 INFO L175 Difference]: Start difference. First operand has 125 places, 258 transitions, 2206 flow. Second operand 18 states and 2923 transitions. [2022-12-13 12:01:34,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 495 transitions, 4591 flow [2022-12-13 12:01:35,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 495 transitions, 4579 flow, removed 6 selfloop flow, removed 0 redundant places. [2022-12-13 12:01:35,014 INFO L231 Difference]: Finished difference. Result has 148 places, 301 transitions, 2975 flow [2022-12-13 12:01:35,014 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=2194, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2975, PETRI_PLACES=148, PETRI_TRANSITIONS=301} [2022-12-13 12:01:35,014 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 71 predicate places. [2022-12-13 12:01:35,015 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 301 transitions, 2975 flow [2022-12-13 12:01:35,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:35,015 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:01:35,015 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:01:35,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 12:01:35,015 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:01:35,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:01:35,016 INFO L85 PathProgramCache]: Analyzing trace with hash 743691328, now seen corresponding path program 3 times [2022-12-13 12:01:35,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:01:35,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158922239] [2022-12-13 12:01:35,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:01:35,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:01:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:01:35,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:01:35,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:01:35,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158922239] [2022-12-13 12:01:35,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158922239] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:01:35,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:01:35,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 12:01:35,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039571590] [2022-12-13 12:01:35,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:01:35,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 12:01:35,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:01:35,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 12:01:35,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:01:35,982 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 368 [2022-12-13 12:01:35,984 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 301 transitions, 2975 flow. Second operand has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:35,984 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:01:35,984 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 368 [2022-12-13 12:01:35,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:01:37,441 INFO L130 PetriNetUnfolder]: 1025/2826 cut-off events. [2022-12-13 12:01:37,441 INFO L131 PetriNetUnfolder]: For 9296/9341 co-relation queries the response was YES. [2022-12-13 12:01:37,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11959 conditions, 2826 events. 1025/2826 cut-off events. For 9296/9341 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 20392 event pairs, 153 based on Foata normal form. 25/2752 useless extension candidates. Maximal degree in co-relation 11924. Up to 740 conditions per place. [2022-12-13 12:01:37,454 INFO L137 encePairwiseOnDemand]: 336/368 looper letters, 321 selfloop transitions, 162 changer transitions 2/525 dead transitions. [2022-12-13 12:01:37,454 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 525 transitions, 5506 flow [2022-12-13 12:01:37,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 12:01:37,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 12:01:37,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2208 transitions. [2022-12-13 12:01:37,457 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46153846153846156 [2022-12-13 12:01:37,457 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2208 transitions. [2022-12-13 12:01:37,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2208 transitions. [2022-12-13 12:01:37,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:01:37,458 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2208 transitions. [2022-12-13 12:01:37,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 169.84615384615384) internal successors, (2208), 13 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:37,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 368.0) internal successors, (5152), 14 states have internal predecessors, (5152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:37,464 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 368.0) internal successors, (5152), 14 states have internal predecessors, (5152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:37,464 INFO L175 Difference]: Start difference. First operand has 148 places, 301 transitions, 2975 flow. Second operand 13 states and 2208 transitions. [2022-12-13 12:01:37,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 525 transitions, 5506 flow [2022-12-13 12:01:37,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 525 transitions, 5494 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-12-13 12:01:37,506 INFO L231 Difference]: Finished difference. Result has 169 places, 354 transitions, 4315 flow [2022-12-13 12:01:37,506 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=2965, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4315, PETRI_PLACES=169, PETRI_TRANSITIONS=354} [2022-12-13 12:01:37,507 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 92 predicate places. [2022-12-13 12:01:37,507 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 354 transitions, 4315 flow [2022-12-13 12:01:37,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:37,507 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:01:37,507 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:01:37,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 12:01:37,508 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:01:37,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:01:37,508 INFO L85 PathProgramCache]: Analyzing trace with hash 418057086, now seen corresponding path program 4 times [2022-12-13 12:01:37,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:01:37,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018812249] [2022-12-13 12:01:37,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:01:37,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:01:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:01:37,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:01:37,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:01:37,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018812249] [2022-12-13 12:01:37,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018812249] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:01:37,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:01:37,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 12:01:37,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902100317] [2022-12-13 12:01:37,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:01:37,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 12:01:37,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:01:37,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 12:01:37,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:01:38,736 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 368 [2022-12-13 12:01:38,737 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 354 transitions, 4315 flow. Second operand has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:38,737 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:01:38,737 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 368 [2022-12-13 12:01:38,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:01:40,620 INFO L130 PetriNetUnfolder]: 1552/4250 cut-off events. [2022-12-13 12:01:40,621 INFO L131 PetriNetUnfolder]: For 21050/21181 co-relation queries the response was YES. [2022-12-13 12:01:40,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19764 conditions, 4250 events. 1552/4250 cut-off events. For 21050/21181 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 34431 event pairs, 144 based on Foata normal form. 90/4180 useless extension candidates. Maximal degree in co-relation 19719. Up to 1043 conditions per place. [2022-12-13 12:01:40,649 INFO L137 encePairwiseOnDemand]: 336/368 looper letters, 413 selfloop transitions, 285 changer transitions 3/741 dead transitions. [2022-12-13 12:01:40,649 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 741 transitions, 9480 flow [2022-12-13 12:01:40,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 12:01:40,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 12:01:40,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2670 transitions. [2022-12-13 12:01:40,654 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45346467391304346 [2022-12-13 12:01:40,654 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2670 transitions. [2022-12-13 12:01:40,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2670 transitions. [2022-12-13 12:01:40,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:01:40,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2670 transitions. [2022-12-13 12:01:40,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 166.875) internal successors, (2670), 16 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:40,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 368.0) internal successors, (6256), 17 states have internal predecessors, (6256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:40,664 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 368.0) internal successors, (6256), 17 states have internal predecessors, (6256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:40,664 INFO L175 Difference]: Start difference. First operand has 169 places, 354 transitions, 4315 flow. Second operand 16 states and 2670 transitions. [2022-12-13 12:01:40,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 741 transitions, 9480 flow [2022-12-13 12:01:40,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 741 transitions, 9436 flow, removed 14 selfloop flow, removed 1 redundant places. [2022-12-13 12:01:40,773 INFO L231 Difference]: Finished difference. Result has 193 places, 487 transitions, 7458 flow [2022-12-13 12:01:40,773 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=4291, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=164, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=7458, PETRI_PLACES=193, PETRI_TRANSITIONS=487} [2022-12-13 12:01:40,774 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 116 predicate places. [2022-12-13 12:01:40,774 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 487 transitions, 7458 flow [2022-12-13 12:01:40,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:40,775 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:01:40,775 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:01:40,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 12:01:40,775 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:01:40,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:01:40,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1581887486, now seen corresponding path program 5 times [2022-12-13 12:01:40,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:01:40,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35317106] [2022-12-13 12:01:40,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:01:40,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:01:40,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:01:41,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:01:41,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:01:41,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35317106] [2022-12-13 12:01:41,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35317106] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:01:41,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:01:41,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 12:01:41,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327976487] [2022-12-13 12:01:41,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:01:41,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 12:01:41,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:01:41,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 12:01:41,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:01:41,769 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 368 [2022-12-13 12:01:41,770 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 487 transitions, 7458 flow. Second operand has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:41,770 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:01:41,770 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 368 [2022-12-13 12:01:41,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:01:44,195 INFO L130 PetriNetUnfolder]: 1924/5255 cut-off events. [2022-12-13 12:01:44,195 INFO L131 PetriNetUnfolder]: For 40258/40455 co-relation queries the response was YES. [2022-12-13 12:01:44,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27071 conditions, 5255 events. 1924/5255 cut-off events. For 40258/40455 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 44835 event pairs, 272 based on Foata normal form. 126/5171 useless extension candidates. Maximal degree in co-relation 27016. Up to 1276 conditions per place. [2022-12-13 12:01:44,225 INFO L137 encePairwiseOnDemand]: 336/368 looper letters, 439 selfloop transitions, 312 changer transitions 2/793 dead transitions. [2022-12-13 12:01:44,225 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 793 transitions, 12173 flow [2022-12-13 12:01:44,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 12:01:44,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 12:01:44,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2358 transitions. [2022-12-13 12:01:44,228 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4576863354037267 [2022-12-13 12:01:44,228 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2358 transitions. [2022-12-13 12:01:44,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2358 transitions. [2022-12-13 12:01:44,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:01:44,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2358 transitions. [2022-12-13 12:01:44,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 168.42857142857142) internal successors, (2358), 14 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:44,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 368.0) internal successors, (5520), 15 states have internal predecessors, (5520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:44,235 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 368.0) internal successors, (5520), 15 states have internal predecessors, (5520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:44,235 INFO L175 Difference]: Start difference. First operand has 193 places, 487 transitions, 7458 flow. Second operand 14 states and 2358 transitions. [2022-12-13 12:01:44,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 793 transitions, 12173 flow [2022-12-13 12:01:44,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 793 transitions, 12089 flow, removed 33 selfloop flow, removed 4 redundant places. [2022-12-13 12:01:44,485 INFO L231 Difference]: Finished difference. Result has 214 places, 583 transitions, 10403 flow [2022-12-13 12:01:44,485 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=7386, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=487, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=221, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=10403, PETRI_PLACES=214, PETRI_TRANSITIONS=583} [2022-12-13 12:01:44,486 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 137 predicate places. [2022-12-13 12:01:44,486 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 583 transitions, 10403 flow [2022-12-13 12:01:44,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:44,486 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:01:44,486 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:01:44,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 12:01:44,486 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:01:44,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:01:44,487 INFO L85 PathProgramCache]: Analyzing trace with hash -744984728, now seen corresponding path program 6 times [2022-12-13 12:01:44,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:01:44,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018962958] [2022-12-13 12:01:44,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:01:44,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:01:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:01:44,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:01:44,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:01:44,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018962958] [2022-12-13 12:01:44,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018962958] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:01:44,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:01:44,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 12:01:44,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196004225] [2022-12-13 12:01:44,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:01:44,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 12:01:44,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:01:44,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 12:01:44,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:01:45,381 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 368 [2022-12-13 12:01:45,382 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 583 transitions, 10403 flow. Second operand has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:45,382 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:01:45,382 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 368 [2022-12-13 12:01:45,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:01:47,915 INFO L130 PetriNetUnfolder]: 2143/5821 cut-off events. [2022-12-13 12:01:47,915 INFO L131 PetriNetUnfolder]: For 61287/61589 co-relation queries the response was YES. [2022-12-13 12:01:47,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32654 conditions, 5821 events. 2143/5821 cut-off events. For 61287/61589 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 50995 event pairs, 229 based on Foata normal form. 223/5826 useless extension candidates. Maximal degree in co-relation 32588. Up to 1695 conditions per place. [2022-12-13 12:01:47,951 INFO L137 encePairwiseOnDemand]: 336/368 looper letters, 411 selfloop transitions, 421 changer transitions 3/875 dead transitions. [2022-12-13 12:01:47,951 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 875 transitions, 15069 flow [2022-12-13 12:01:47,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 12:01:47,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 12:01:47,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2991 transitions. [2022-12-13 12:01:47,954 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45153985507246375 [2022-12-13 12:01:47,954 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2991 transitions. [2022-12-13 12:01:47,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2991 transitions. [2022-12-13 12:01:47,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:01:47,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2991 transitions. [2022-12-13 12:01:47,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 166.16666666666666) internal successors, (2991), 18 states have internal predecessors, (2991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:47,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 368.0) internal successors, (6992), 19 states have internal predecessors, (6992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:47,961 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 368.0) internal successors, (6992), 19 states have internal predecessors, (6992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:47,962 INFO L175 Difference]: Start difference. First operand has 214 places, 583 transitions, 10403 flow. Second operand 18 states and 2991 transitions. [2022-12-13 12:01:47,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 875 transitions, 15069 flow [2022-12-13 12:01:48,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 875 transitions, 15015 flow, removed 27 selfloop flow, removed 0 redundant places. [2022-12-13 12:01:48,375 INFO L231 Difference]: Finished difference. Result has 243 places, 660 transitions, 13672 flow [2022-12-13 12:01:48,376 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=10361, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=583, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=345, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=13672, PETRI_PLACES=243, PETRI_TRANSITIONS=660} [2022-12-13 12:01:48,376 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 166 predicate places. [2022-12-13 12:01:48,376 INFO L495 AbstractCegarLoop]: Abstraction has has 243 places, 660 transitions, 13672 flow [2022-12-13 12:01:48,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:48,377 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:01:48,377 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:01:48,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 12:01:48,377 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:01:48,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:01:48,377 INFO L85 PathProgramCache]: Analyzing trace with hash -133725722, now seen corresponding path program 7 times [2022-12-13 12:01:48,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:01:48,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033224119] [2022-12-13 12:01:48,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:01:48,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:01:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:01:48,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:01:48,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:01:48,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033224119] [2022-12-13 12:01:48,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033224119] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:01:48,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:01:48,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 12:01:48,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177601698] [2022-12-13 12:01:48,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:01:48,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 12:01:48,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:01:48,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 12:01:48,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:01:49,252 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 368 [2022-12-13 12:01:49,252 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 660 transitions, 13672 flow. Second operand has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:49,252 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:01:49,253 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 368 [2022-12-13 12:01:49,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:01:52,062 INFO L130 PetriNetUnfolder]: 2463/6752 cut-off events. [2022-12-13 12:01:52,062 INFO L131 PetriNetUnfolder]: For 94468/94871 co-relation queries the response was YES. [2022-12-13 12:01:52,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40919 conditions, 6752 events. 2463/6752 cut-off events. For 94468/94871 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 61477 event pairs, 419 based on Foata normal form. 272/6746 useless extension candidates. Maximal degree in co-relation 40840. Up to 1737 conditions per place. [2022-12-13 12:01:52,117 INFO L137 encePairwiseOnDemand]: 336/368 looper letters, 542 selfloop transitions, 400 changer transitions 2/984 dead transitions. [2022-12-13 12:01:52,117 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 984 transitions, 19934 flow [2022-12-13 12:01:52,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 12:01:52,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 12:01:52,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2345 transitions. [2022-12-13 12:01:52,120 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45516304347826086 [2022-12-13 12:01:52,120 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2345 transitions. [2022-12-13 12:01:52,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2345 transitions. [2022-12-13 12:01:52,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:01:52,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2345 transitions. [2022-12-13 12:01:52,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 167.5) internal successors, (2345), 14 states have internal predecessors, (2345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:52,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 368.0) internal successors, (5520), 15 states have internal predecessors, (5520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:52,128 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 368.0) internal successors, (5520), 15 states have internal predecessors, (5520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:52,128 INFO L175 Difference]: Start difference. First operand has 243 places, 660 transitions, 13672 flow. Second operand 14 states and 2345 transitions. [2022-12-13 12:01:52,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 984 transitions, 19934 flow [2022-12-13 12:01:52,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 984 transitions, 19866 flow, removed 25 selfloop flow, removed 4 redundant places. [2022-12-13 12:01:52,878 INFO L231 Difference]: Finished difference. Result has 264 places, 754 transitions, 17558 flow [2022-12-13 12:01:52,878 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=13623, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=660, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=310, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=17558, PETRI_PLACES=264, PETRI_TRANSITIONS=754} [2022-12-13 12:01:52,878 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 187 predicate places. [2022-12-13 12:01:52,878 INFO L495 AbstractCegarLoop]: Abstraction has has 264 places, 754 transitions, 17558 flow [2022-12-13 12:01:52,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:52,879 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:01:52,879 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:01:52,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 12:01:52,879 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:01:52,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:01:52,879 INFO L85 PathProgramCache]: Analyzing trace with hash -467928428, now seen corresponding path program 8 times [2022-12-13 12:01:52,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:01:52,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988643748] [2022-12-13 12:01:52,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:01:52,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:01:52,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:01:53,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:01:53,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:01:53,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988643748] [2022-12-13 12:01:53,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988643748] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:01:53,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:01:53,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 12:01:53,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139088213] [2022-12-13 12:01:53,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:01:53,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 12:01:53,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:01:53,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 12:01:53,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:01:53,682 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 368 [2022-12-13 12:01:53,683 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 754 transitions, 17558 flow. Second operand has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:53,683 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:01:53,683 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 368 [2022-12-13 12:01:53,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:01:57,111 INFO L130 PetriNetUnfolder]: 2623/7184 cut-off events. [2022-12-13 12:01:57,111 INFO L131 PetriNetUnfolder]: For 125550/125977 co-relation queries the response was YES. [2022-12-13 12:01:57,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46287 conditions, 7184 events. 2623/7184 cut-off events. For 125550/125977 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 66723 event pairs, 323 based on Foata normal form. 284/7176 useless extension candidates. Maximal degree in co-relation 46197. Up to 1820 conditions per place. [2022-12-13 12:01:57,195 INFO L137 encePairwiseOnDemand]: 336/368 looper letters, 503 selfloop transitions, 499 changer transitions 3/1045 dead transitions. [2022-12-13 12:01:57,195 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 1045 transitions, 22982 flow [2022-12-13 12:01:57,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 12:01:57,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 12:01:57,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2830 transitions. [2022-12-13 12:01:57,199 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4523657289002558 [2022-12-13 12:01:57,199 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2830 transitions. [2022-12-13 12:01:57,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2830 transitions. [2022-12-13 12:01:57,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:01:57,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2830 transitions. [2022-12-13 12:01:57,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 166.47058823529412) internal successors, (2830), 17 states have internal predecessors, (2830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:57,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 368.0) internal successors, (6624), 18 states have internal predecessors, (6624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:57,213 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 368.0) internal successors, (6624), 18 states have internal predecessors, (6624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:57,213 INFO L175 Difference]: Start difference. First operand has 264 places, 754 transitions, 17558 flow. Second operand 17 states and 2830 transitions. [2022-12-13 12:01:57,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 1045 transitions, 22982 flow [2022-12-13 12:01:58,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 1045 transitions, 22900 flow, removed 41 selfloop flow, removed 0 redundant places. [2022-12-13 12:01:58,364 INFO L231 Difference]: Finished difference. Result has 291 places, 819 transitions, 21203 flow [2022-12-13 12:01:58,364 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=17486, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=754, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=434, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=21203, PETRI_PLACES=291, PETRI_TRANSITIONS=819} [2022-12-13 12:01:58,364 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 214 predicate places. [2022-12-13 12:01:58,365 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 819 transitions, 21203 flow [2022-12-13 12:01:58,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:58,365 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:01:58,365 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:01:58,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 12:01:58,365 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:01:58,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:01:58,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1304831186, now seen corresponding path program 9 times [2022-12-13 12:01:58,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:01:58,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164938495] [2022-12-13 12:01:58,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:01:58,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:01:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:01:58,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:01:58,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:01:58,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164938495] [2022-12-13 12:01:58,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164938495] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:01:58,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:01:58,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 12:01:58,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282032641] [2022-12-13 12:01:58,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:01:58,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 12:01:58,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:01:58,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 12:01:58,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:01:59,543 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 368 [2022-12-13 12:01:59,543 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 819 transitions, 21203 flow. Second operand has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:59,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:01:59,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 368 [2022-12-13 12:01:59,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:02:03,101 INFO L130 PetriNetUnfolder]: 2825/7768 cut-off events. [2022-12-13 12:02:03,101 INFO L131 PetriNetUnfolder]: For 168254/168783 co-relation queries the response was YES. [2022-12-13 12:02:03,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53070 conditions, 7768 events. 2825/7768 cut-off events. For 168254/168783 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 73511 event pairs, 346 based on Foata normal form. 374/7814 useless extension candidates. Maximal degree in co-relation 52968. Up to 2299 conditions per place. [2022-12-13 12:02:03,193 INFO L137 encePairwiseOnDemand]: 337/368 looper letters, 451 selfloop transitions, 577 changer transitions 2/1070 dead transitions. [2022-12-13 12:02:03,194 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 1070 transitions, 26637 flow [2022-12-13 12:02:03,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 12:02:03,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 12:02:03,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2342 transitions. [2022-12-13 12:02:03,196 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4545807453416149 [2022-12-13 12:02:03,196 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2342 transitions. [2022-12-13 12:02:03,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2342 transitions. [2022-12-13 12:02:03,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:02:03,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2342 transitions. [2022-12-13 12:02:03,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 167.28571428571428) internal successors, (2342), 14 states have internal predecessors, (2342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:03,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 368.0) internal successors, (5520), 15 states have internal predecessors, (5520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:03,201 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 368.0) internal successors, (5520), 15 states have internal predecessors, (5520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:03,201 INFO L175 Difference]: Start difference. First operand has 291 places, 819 transitions, 21203 flow. Second operand 14 states and 2342 transitions. [2022-12-13 12:02:03,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 1070 transitions, 26637 flow [2022-12-13 12:02:04,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 1070 transitions, 26566 flow, removed 30 selfloop flow, removed 3 redundant places. [2022-12-13 12:02:04,834 INFO L231 Difference]: Finished difference. Result has 313 places, 886 transitions, 25436 flow [2022-12-13 12:02:04,834 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=21144, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=819, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=512, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=25436, PETRI_PLACES=313, PETRI_TRANSITIONS=886} [2022-12-13 12:02:04,835 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 236 predicate places. [2022-12-13 12:02:04,835 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 886 transitions, 25436 flow [2022-12-13 12:02:04,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:04,835 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:02:04,835 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:02:04,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 12:02:04,835 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:02:04,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:02:04,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1296767536, now seen corresponding path program 10 times [2022-12-13 12:02:04,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:02:04,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776186271] [2022-12-13 12:02:04,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:02:04,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:02:04,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:02:05,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:02:05,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:02:05,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776186271] [2022-12-13 12:02:05,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776186271] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:02:05,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:02:05,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 12:02:05,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007253431] [2022-12-13 12:02:05,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:02:05,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 12:02:05,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:02:05,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 12:02:05,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:02:05,662 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 368 [2022-12-13 12:02:05,663 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 886 transitions, 25436 flow. Second operand has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:05,663 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:02:05,663 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 368 [2022-12-13 12:02:05,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:02:10,363 INFO L130 PetriNetUnfolder]: 3027/8323 cut-off events. [2022-12-13 12:02:10,363 INFO L131 PetriNetUnfolder]: For 224874/225466 co-relation queries the response was YES. [2022-12-13 12:02:10,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60669 conditions, 8323 events. 3027/8323 cut-off events. For 224874/225466 co-relation queries the response was YES. Maximal size of possible extension queue 351. Compared 79973 event pairs, 410 based on Foata normal form. 428/8404 useless extension candidates. Maximal degree in co-relation 60556. Up to 2372 conditions per place. [2022-12-13 12:02:10,443 INFO L137 encePairwiseOnDemand]: 338/368 looper letters, 473 selfloop transitions, 600 changer transitions 2/1115 dead transitions. [2022-12-13 12:02:10,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 1115 transitions, 31159 flow [2022-12-13 12:02:10,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 12:02:10,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 12:02:10,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2310 transitions. [2022-12-13 12:02:10,446 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4483695652173913 [2022-12-13 12:02:10,446 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2310 transitions. [2022-12-13 12:02:10,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2310 transitions. [2022-12-13 12:02:10,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:02:10,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2310 transitions. [2022-12-13 12:02:10,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 165.0) internal successors, (2310), 14 states have internal predecessors, (2310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:10,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 368.0) internal successors, (5520), 15 states have internal predecessors, (5520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:10,451 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 368.0) internal successors, (5520), 15 states have internal predecessors, (5520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:10,451 INFO L175 Difference]: Start difference. First operand has 313 places, 886 transitions, 25436 flow. Second operand 14 states and 2310 transitions. [2022-12-13 12:02:10,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 1115 transitions, 31159 flow [2022-12-13 12:02:12,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 1115 transitions, 31063 flow, removed 48 selfloop flow, removed 0 redundant places. [2022-12-13 12:02:12,441 INFO L231 Difference]: Finished difference. Result has 338 places, 948 transitions, 29930 flow [2022-12-13 12:02:12,442 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=25346, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=886, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=539, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=29930, PETRI_PLACES=338, PETRI_TRANSITIONS=948} [2022-12-13 12:02:12,442 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 261 predicate places. [2022-12-13 12:02:12,442 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 948 transitions, 29930 flow [2022-12-13 12:02:12,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:12,443 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:02:12,443 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:02:12,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 12:02:12,443 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:02:12,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:02:12,443 INFO L85 PathProgramCache]: Analyzing trace with hash 751907878, now seen corresponding path program 11 times [2022-12-13 12:02:12,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:02:12,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520309688] [2022-12-13 12:02:12,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:02:12,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:02:12,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:02:12,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:02:12,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:02:12,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520309688] [2022-12-13 12:02:12,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520309688] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:02:12,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:02:12,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 12:02:12,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057463162] [2022-12-13 12:02:12,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:02:12,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 12:02:12,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:02:12,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 12:02:12,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:02:13,364 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 368 [2022-12-13 12:02:13,365 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 948 transitions, 29930 flow. Second operand has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:13,366 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:02:13,366 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 368 [2022-12-13 12:02:13,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:02:18,405 INFO L130 PetriNetUnfolder]: 3173/8731 cut-off events. [2022-12-13 12:02:18,405 INFO L131 PetriNetUnfolder]: For 284707/285339 co-relation queries the response was YES. [2022-12-13 12:02:18,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66927 conditions, 8731 events. 3173/8731 cut-off events. For 284707/285339 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 84952 event pairs, 467 based on Foata normal form. 435/8804 useless extension candidates. Maximal degree in co-relation 66802. Up to 2439 conditions per place. [2022-12-13 12:02:18,488 INFO L137 encePairwiseOnDemand]: 336/368 looper letters, 526 selfloop transitions, 629 changer transitions 2/1197 dead transitions. [2022-12-13 12:02:18,488 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 1197 transitions, 35559 flow [2022-12-13 12:02:18,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 12:02:18,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 12:02:18,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2370 transitions. [2022-12-13 12:02:18,491 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46001552795031053 [2022-12-13 12:02:18,491 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2370 transitions. [2022-12-13 12:02:18,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2370 transitions. [2022-12-13 12:02:18,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:02:18,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2370 transitions. [2022-12-13 12:02:18,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 169.28571428571428) internal successors, (2370), 14 states have internal predecessors, (2370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:18,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 368.0) internal successors, (5520), 15 states have internal predecessors, (5520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:18,496 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 368.0) internal successors, (5520), 15 states have internal predecessors, (5520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:18,496 INFO L175 Difference]: Start difference. First operand has 338 places, 948 transitions, 29930 flow. Second operand 14 states and 2370 transitions. [2022-12-13 12:02:18,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 1197 transitions, 35559 flow [2022-12-13 12:02:21,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 1197 transitions, 35385 flow, removed 87 selfloop flow, removed 0 redundant places. [2022-12-13 12:02:21,539 INFO L231 Difference]: Finished difference. Result has 361 places, 998 transitions, 34051 flow [2022-12-13 12:02:21,539 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=29776, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=948, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=580, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=34051, PETRI_PLACES=361, PETRI_TRANSITIONS=998} [2022-12-13 12:02:21,539 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 284 predicate places. [2022-12-13 12:02:21,540 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 998 transitions, 34051 flow [2022-12-13 12:02:21,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:21,540 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:02:21,540 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:02:21,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 12:02:21,540 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:02:21,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:02:21,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1019711236, now seen corresponding path program 12 times [2022-12-13 12:02:21,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:02:21,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764390652] [2022-12-13 12:02:21,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:02:21,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:02:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:02:21,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:02:21,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:02:21,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764390652] [2022-12-13 12:02:21,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764390652] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:02:21,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:02:21,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 12:02:21,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888419903] [2022-12-13 12:02:21,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:02:21,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 12:02:21,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:02:21,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 12:02:21,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:02:22,383 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 368 [2022-12-13 12:02:22,384 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 998 transitions, 34051 flow. Second operand has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:22,384 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:02:22,384 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 368 [2022-12-13 12:02:22,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:02:27,252 INFO L130 PetriNetUnfolder]: 3323/9222 cut-off events. [2022-12-13 12:02:27,252 INFO L131 PetriNetUnfolder]: For 349345/350063 co-relation queries the response was YES. [2022-12-13 12:02:27,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73972 conditions, 9222 events. 3323/9222 cut-off events. For 349345/350063 co-relation queries the response was YES. Maximal size of possible extension queue 396. Compared 91185 event pairs, 442 based on Foata normal form. 518/9335 useless extension candidates. Maximal degree in co-relation 73837. Up to 2379 conditions per place. [2022-12-13 12:02:27,341 INFO L137 encePairwiseOnDemand]: 337/368 looper letters, 542 selfloop transitions, 658 changer transitions 2/1242 dead transitions. [2022-12-13 12:02:27,342 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 1242 transitions, 40428 flow [2022-12-13 12:02:27,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 12:02:27,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 12:02:27,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2329 transitions. [2022-12-13 12:02:27,344 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45205745341614906 [2022-12-13 12:02:27,344 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2329 transitions. [2022-12-13 12:02:27,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2329 transitions. [2022-12-13 12:02:27,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:02:27,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2329 transitions. [2022-12-13 12:02:27,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 166.35714285714286) internal successors, (2329), 14 states have internal predecessors, (2329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:27,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 368.0) internal successors, (5520), 15 states have internal predecessors, (5520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:27,349 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 368.0) internal successors, (5520), 15 states have internal predecessors, (5520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:27,349 INFO L175 Difference]: Start difference. First operand has 361 places, 998 transitions, 34051 flow. Second operand 14 states and 2329 transitions. [2022-12-13 12:02:27,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 1242 transitions, 40428 flow [2022-12-13 12:02:30,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 1242 transitions, 40264 flow, removed 60 selfloop flow, removed 1 redundant places. [2022-12-13 12:02:30,930 INFO L231 Difference]: Finished difference. Result has 384 places, 1052 transitions, 38761 flow [2022-12-13 12:02:30,931 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=33899, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=998, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=604, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=38761, PETRI_PLACES=384, PETRI_TRANSITIONS=1052} [2022-12-13 12:02:30,931 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 307 predicate places. [2022-12-13 12:02:30,931 INFO L495 AbstractCegarLoop]: Abstraction has has 384 places, 1052 transitions, 38761 flow [2022-12-13 12:02:30,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:30,931 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:02:30,931 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:02:30,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 12:02:30,932 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:02:30,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:02:30,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1000612677, now seen corresponding path program 1 times [2022-12-13 12:02:30,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:02:30,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436503427] [2022-12-13 12:02:30,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:02:30,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:02:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:02:31,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:02:31,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:02:31,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436503427] [2022-12-13 12:02:31,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436503427] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:02:31,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:02:31,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:02:31,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125143803] [2022-12-13 12:02:31,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:02:31,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:02:31,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:02:31,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:02:31,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:02:31,373 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 368 [2022-12-13 12:02:31,374 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 1052 transitions, 38761 flow. Second operand has 6 states, 6 states have (on average 155.0) internal successors, (930), 6 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:31,374 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:02:31,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 368 [2022-12-13 12:02:31,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:02:38,469 INFO L130 PetriNetUnfolder]: 5351/13505 cut-off events. [2022-12-13 12:02:38,469 INFO L131 PetriNetUnfolder]: For 520719/520959 co-relation queries the response was YES. [2022-12-13 12:02:38,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101857 conditions, 13505 events. 5351/13505 cut-off events. For 520719/520959 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 132046 event pairs, 2021 based on Foata normal form. 17/12854 useless extension candidates. Maximal degree in co-relation 101712. Up to 9935 conditions per place. [2022-12-13 12:02:38,673 INFO L137 encePairwiseOnDemand]: 354/368 looper letters, 972 selfloop transitions, 165 changer transitions 0/1316 dead transitions. [2022-12-13 12:02:38,673 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 1316 transitions, 49405 flow [2022-12-13 12:02:38,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:02:38,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 12:02:38,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1023 transitions. [2022-12-13 12:02:38,675 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4633152173913043 [2022-12-13 12:02:38,675 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1023 transitions. [2022-12-13 12:02:38,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1023 transitions. [2022-12-13 12:02:38,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:02:38,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1023 transitions. [2022-12-13 12:02:38,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 170.5) internal successors, (1023), 6 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:38,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 368.0) internal successors, (2576), 7 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:38,679 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 368.0) internal successors, (2576), 7 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:38,680 INFO L175 Difference]: Start difference. First operand has 384 places, 1052 transitions, 38761 flow. Second operand 6 states and 1023 transitions. [2022-12-13 12:02:38,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 1316 transitions, 49405 flow [2022-12-13 12:02:44,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 1316 transitions, 49202 flow, removed 91 selfloop flow, removed 1 redundant places. [2022-12-13 12:02:44,993 INFO L231 Difference]: Finished difference. Result has 392 places, 1188 transitions, 42152 flow [2022-12-13 12:02:44,993 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=38630, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1052, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=959, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=42152, PETRI_PLACES=392, PETRI_TRANSITIONS=1188} [2022-12-13 12:02:44,994 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 315 predicate places. [2022-12-13 12:02:44,994 INFO L495 AbstractCegarLoop]: Abstraction has has 392 places, 1188 transitions, 42152 flow [2022-12-13 12:02:44,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 155.0) internal successors, (930), 6 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:44,994 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:02:44,994 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:02:44,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 12:02:44,994 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:02:44,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:02:44,995 INFO L85 PathProgramCache]: Analyzing trace with hash 823598378, now seen corresponding path program 1 times [2022-12-13 12:02:44,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:02:44,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604732448] [2022-12-13 12:02:44,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:02:44,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:02:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:02:45,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:02:45,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:02:45,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604732448] [2022-12-13 12:02:45,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604732448] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:02:45,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:02:45,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:02:45,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896454760] [2022-12-13 12:02:45,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:02:45,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:02:45,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:02:45,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:02:45,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:02:45,371 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 368 [2022-12-13 12:02:45,372 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 1188 transitions, 42152 flow. Second operand has 6 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:45,372 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:02:45,372 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 368 [2022-12-13 12:02:45,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:02:55,566 INFO L130 PetriNetUnfolder]: 7575/17965 cut-off events. [2022-12-13 12:02:55,566 INFO L131 PetriNetUnfolder]: For 769565/770321 co-relation queries the response was YES. [2022-12-13 12:02:55,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145255 conditions, 17965 events. 7575/17965 cut-off events. For 769565/770321 co-relation queries the response was YES. Maximal size of possible extension queue 669. Compared 178091 event pairs, 801 based on Foata normal form. 121/17612 useless extension candidates. Maximal degree in co-relation 145105. Up to 10258 conditions per place. [2022-12-13 12:02:55,794 INFO L137 encePairwiseOnDemand]: 346/368 looper letters, 1073 selfloop transitions, 701 changer transitions 4/2090 dead transitions. [2022-12-13 12:02:55,794 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 2090 transitions, 81679 flow [2022-12-13 12:02:55,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:02:55,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 12:02:55,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1104 transitions. [2022-12-13 12:02:55,796 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-13 12:02:55,796 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1104 transitions. [2022-12-13 12:02:55,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1104 transitions. [2022-12-13 12:02:55,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:02:55,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1104 transitions. [2022-12-13 12:02:55,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:55,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 368.0) internal successors, (2576), 7 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:55,799 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 368.0) internal successors, (2576), 7 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:55,799 INFO L175 Difference]: Start difference. First operand has 392 places, 1188 transitions, 42152 flow. Second operand 6 states and 1104 transitions. [2022-12-13 12:02:55,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 2090 transitions, 81679 flow [2022-12-13 12:03:05,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 2090 transitions, 81335 flow, removed 172 selfloop flow, removed 0 redundant places. [2022-12-13 12:03:05,542 INFO L231 Difference]: Finished difference. Result has 402 places, 1725 transitions, 67428 flow [2022-12-13 12:03:05,543 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=41808, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=259, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=898, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=67428, PETRI_PLACES=402, PETRI_TRANSITIONS=1725} [2022-12-13 12:03:05,543 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 325 predicate places. [2022-12-13 12:03:05,543 INFO L495 AbstractCegarLoop]: Abstraction has has 402 places, 1725 transitions, 67428 flow [2022-12-13 12:03:05,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:03:05,543 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:03:05,544 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:03:05,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 12:03:05,544 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:03:05,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:03:05,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1881764692, now seen corresponding path program 1 times [2022-12-13 12:03:05,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:03:05,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531724358] [2022-12-13 12:03:05,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:03:05,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:03:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:03:05,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:03:05,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:03:05,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531724358] [2022-12-13 12:03:05,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531724358] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:03:05,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:03:05,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 12:03:05,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172880618] [2022-12-13 12:03:05,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:03:05,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 12:03:05,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:03:05,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 12:03:05,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:03:06,334 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 368 [2022-12-13 12:03:06,334 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 1725 transitions, 67428 flow. Second operand has 10 states, 10 states have (on average 150.5) internal successors, (1505), 10 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:03:06,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:03:06,335 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 368 [2022-12-13 12:03:06,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:03:19,921 INFO L130 PetriNetUnfolder]: 7795/18734 cut-off events. [2022-12-13 12:03:19,921 INFO L131 PetriNetUnfolder]: For 796674/797253 co-relation queries the response was YES. [2022-12-13 12:03:20,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160262 conditions, 18734 events. 7795/18734 cut-off events. For 796674/797253 co-relation queries the response was YES. Maximal size of possible extension queue 659. Compared 186937 event pairs, 1756 based on Foata normal form. 231/18533 useless extension candidates. Maximal degree in co-relation 160107. Up to 11215 conditions per place. [2022-12-13 12:03:20,234 INFO L137 encePairwiseOnDemand]: 354/368 looper letters, 1224 selfloop transitions, 465 changer transitions 2/1997 dead transitions. [2022-12-13 12:03:20,234 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 1997 transitions, 78069 flow [2022-12-13 12:03:20,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 12:03:20,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 12:03:20,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2426 transitions. [2022-12-13 12:03:20,237 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4394927536231884 [2022-12-13 12:03:20,237 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2426 transitions. [2022-12-13 12:03:20,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2426 transitions. [2022-12-13 12:03:20,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:03:20,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2426 transitions. [2022-12-13 12:03:20,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 161.73333333333332) internal successors, (2426), 15 states have internal predecessors, (2426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:03:20,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 368.0) internal successors, (5888), 16 states have internal predecessors, (5888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:03:20,243 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 368.0) internal successors, (5888), 16 states have internal predecessors, (5888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:03:20,243 INFO L175 Difference]: Start difference. First operand has 402 places, 1725 transitions, 67428 flow. Second operand 15 states and 2426 transitions. [2022-12-13 12:03:20,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 1997 transitions, 78069 flow [2022-12-13 12:03:31,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 1997 transitions, 77307 flow, removed 381 selfloop flow, removed 0 redundant places. [2022-12-13 12:03:31,805 INFO L231 Difference]: Finished difference. Result has 420 places, 1811 transitions, 71166 flow [2022-12-13 12:03:31,806 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=66690, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1725, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=385, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=71166, PETRI_PLACES=420, PETRI_TRANSITIONS=1811} [2022-12-13 12:03:31,806 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 343 predicate places. [2022-12-13 12:03:31,806 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 1811 transitions, 71166 flow [2022-12-13 12:03:31,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 150.5) internal successors, (1505), 10 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:03:31,806 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:03:31,806 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:03:31,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 12:03:31,807 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:03:31,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:03:31,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1703039394, now seen corresponding path program 1 times [2022-12-13 12:03:31,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:03:31,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452783171] [2022-12-13 12:03:31,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:03:31,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:03:31,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:03:32,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:03:32,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:03:32,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452783171] [2022-12-13 12:03:32,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452783171] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:03:32,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:03:32,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 12:03:32,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954338154] [2022-12-13 12:03:32,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:03:32,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 12:03:32,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:03:32,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 12:03:32,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-12-13 12:03:33,207 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 368 [2022-12-13 12:03:33,208 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 1811 transitions, 71166 flow. Second operand has 12 states, 12 states have (on average 135.58333333333334) internal successors, (1627), 12 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:03:33,208 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:03:33,208 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 368 [2022-12-13 12:03:33,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:03:47,839 INFO L130 PetriNetUnfolder]: 7849/18752 cut-off events. [2022-12-13 12:03:47,839 INFO L131 PetriNetUnfolder]: For 831225/831762 co-relation queries the response was YES. [2022-12-13 12:03:48,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162352 conditions, 18752 events. 7849/18752 cut-off events. For 831225/831762 co-relation queries the response was YES. Maximal size of possible extension queue 695. Compared 186337 event pairs, 1691 based on Foata normal form. 107/18419 useless extension candidates. Maximal degree in co-relation 162192. Up to 9601 conditions per place. [2022-12-13 12:03:48,158 INFO L137 encePairwiseOnDemand]: 350/368 looper letters, 1127 selfloop transitions, 518 changer transitions 0/2033 dead transitions. [2022-12-13 12:03:48,158 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 2033 transitions, 79808 flow [2022-12-13 12:03:48,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 12:03:48,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-13 12:03:48,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2754 transitions. [2022-12-13 12:03:48,163 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.39387871853546913 [2022-12-13 12:03:48,163 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2754 transitions. [2022-12-13 12:03:48,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2754 transitions. [2022-12-13 12:03:48,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:03:48,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2754 transitions. [2022-12-13 12:03:48,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 144.94736842105263) internal successors, (2754), 19 states have internal predecessors, (2754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:03:48,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 368.0) internal successors, (7360), 20 states have internal predecessors, (7360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:03:48,173 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 368.0) internal successors, (7360), 20 states have internal predecessors, (7360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:03:48,173 INFO L175 Difference]: Start difference. First operand has 420 places, 1811 transitions, 71166 flow. Second operand 19 states and 2754 transitions. [2022-12-13 12:03:48,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 2033 transitions, 79808 flow [2022-12-13 12:04:00,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 2033 transitions, 79731 flow, removed 14 selfloop flow, removed 3 redundant places. [2022-12-13 12:04:00,255 INFO L231 Difference]: Finished difference. Result has 441 places, 1840 transitions, 73486 flow [2022-12-13 12:04:00,256 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=71089, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1811, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=491, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=73486, PETRI_PLACES=441, PETRI_TRANSITIONS=1840} [2022-12-13 12:04:00,257 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 364 predicate places. [2022-12-13 12:04:00,257 INFO L495 AbstractCegarLoop]: Abstraction has has 441 places, 1840 transitions, 73486 flow [2022-12-13 12:04:00,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 135.58333333333334) internal successors, (1627), 12 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:04:00,257 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:04:00,257 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:04:00,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 12:04:00,257 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:04:00,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:04:00,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1109874082, now seen corresponding path program 2 times [2022-12-13 12:04:00,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:04:00,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90259508] [2022-12-13 12:04:00,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:04:00,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:04:00,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:04:00,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:04:00,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:04:00,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90259508] [2022-12-13 12:04:00,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90259508] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:04:00,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:04:00,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 12:04:00,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160346813] [2022-12-13 12:04:00,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:04:00,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 12:04:00,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:04:00,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 12:04:00,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-12-13 12:04:01,540 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 368 [2022-12-13 12:04:01,540 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 1840 transitions, 73486 flow. Second operand has 12 states, 12 states have (on average 135.58333333333334) internal successors, (1627), 12 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:04:01,541 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:04:01,541 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 368 [2022-12-13 12:04:01,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:04:25,766 INFO L130 PetriNetUnfolder]: 12686/29898 cut-off events. [2022-12-13 12:04:25,766 INFO L131 PetriNetUnfolder]: For 1338342/1339057 co-relation queries the response was YES. [2022-12-13 12:04:26,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267524 conditions, 29898 events. 12686/29898 cut-off events. For 1338342/1339057 co-relation queries the response was YES. Maximal size of possible extension queue 980. Compared 318144 event pairs, 1828 based on Foata normal form. 138/29463 useless extension candidates. Maximal degree in co-relation 267357. Up to 11019 conditions per place. [2022-12-13 12:04:26,316 INFO L137 encePairwiseOnDemand]: 352/368 looper letters, 2179 selfloop transitions, 452 changer transitions 0/3019 dead transitions. [2022-12-13 12:04:26,316 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 3019 transitions, 122204 flow [2022-12-13 12:04:26,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 12:04:26,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 12:04:26,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2336 transitions. [2022-12-13 12:04:26,319 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3967391304347826 [2022-12-13 12:04:26,319 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2336 transitions. [2022-12-13 12:04:26,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2336 transitions. [2022-12-13 12:04:26,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:04:26,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2336 transitions. [2022-12-13 12:04:26,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 146.0) internal successors, (2336), 16 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:04:26,325 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 368.0) internal successors, (6256), 17 states have internal predecessors, (6256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:04:26,325 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 368.0) internal successors, (6256), 17 states have internal predecessors, (6256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:04:26,325 INFO L175 Difference]: Start difference. First operand has 441 places, 1840 transitions, 73486 flow. Second operand 16 states and 2336 transitions. [2022-12-13 12:04:26,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 3019 transitions, 122204 flow [2022-12-13 12:04:51,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 3019 transitions, 121636 flow, removed 5 selfloop flow, removed 8 redundant places. [2022-12-13 12:04:51,505 INFO L231 Difference]: Finished difference. Result has 458 places, 2208 transitions, 92504 flow [2022-12-13 12:04:51,506 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=73131, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1840, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=92504, PETRI_PLACES=458, PETRI_TRANSITIONS=2208} [2022-12-13 12:04:51,506 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 381 predicate places. [2022-12-13 12:04:51,506 INFO L495 AbstractCegarLoop]: Abstraction has has 458 places, 2208 transitions, 92504 flow [2022-12-13 12:04:51,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 135.58333333333334) internal successors, (1627), 12 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:04:51,507 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:04:51,507 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:04:51,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 12:04:51,507 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:04:51,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:04:51,507 INFO L85 PathProgramCache]: Analyzing trace with hash -436911652, now seen corresponding path program 3 times [2022-12-13 12:04:51,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:04:51,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950198885] [2022-12-13 12:04:51,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:04:51,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:04:51,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:04:52,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:04:52,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:04:52,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950198885] [2022-12-13 12:04:52,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950198885] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:04:52,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:04:52,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 12:04:52,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440995769] [2022-12-13 12:04:52,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:04:52,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 12:04:52,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:04:52,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 12:04:52,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-12-13 12:04:53,091 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 368 [2022-12-13 12:04:53,092 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 2208 transitions, 92504 flow. Second operand has 12 states, 12 states have (on average 135.58333333333334) internal successors, (1627), 12 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:04:53,092 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:04:53,092 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 368 [2022-12-13 12:04:53,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:05:18,397 INFO L130 PetriNetUnfolder]: 12807/30093 cut-off events. [2022-12-13 12:05:18,397 INFO L131 PetriNetUnfolder]: For 1397202/1398390 co-relation queries the response was YES. [2022-12-13 12:05:18,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277021 conditions, 30093 events. 12807/30093 cut-off events. For 1397202/1398390 co-relation queries the response was YES. Maximal size of possible extension queue 979. Compared 318481 event pairs, 2603 based on Foata normal form. 311/29777 useless extension candidates. Maximal degree in co-relation 276843. Up to 15721 conditions per place. [2022-12-13 12:05:18,995 INFO L137 encePairwiseOnDemand]: 350/368 looper letters, 1243 selfloop transitions, 770 changer transitions 0/2401 dead transitions. [2022-12-13 12:05:18,995 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 2401 transitions, 101302 flow [2022-12-13 12:05:18,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 12:05:18,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 12:05:18,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2609 transitions. [2022-12-13 12:05:18,999 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3938707729468599 [2022-12-13 12:05:18,999 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2609 transitions. [2022-12-13 12:05:18,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2609 transitions. [2022-12-13 12:05:18,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:05:18,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2609 transitions. [2022-12-13 12:05:19,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 144.94444444444446) internal successors, (2609), 18 states have internal predecessors, (2609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:05:19,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 368.0) internal successors, (6992), 19 states have internal predecessors, (6992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:05:19,006 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 368.0) internal successors, (6992), 19 states have internal predecessors, (6992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:05:19,006 INFO L175 Difference]: Start difference. First operand has 458 places, 2208 transitions, 92504 flow. Second operand 18 states and 2609 transitions. [2022-12-13 12:05:19,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 475 places, 2401 transitions, 101302 flow [2022-12-13 12:05:43,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 2401 transitions, 101244 flow, removed 29 selfloop flow, removed 0 redundant places. [2022-12-13 12:05:43,577 INFO L231 Difference]: Finished difference. Result has 482 places, 2240 transitions, 95237 flow [2022-12-13 12:05:43,578 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=92454, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=739, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=95237, PETRI_PLACES=482, PETRI_TRANSITIONS=2240} [2022-12-13 12:05:43,578 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 405 predicate places. [2022-12-13 12:05:43,579 INFO L495 AbstractCegarLoop]: Abstraction has has 482 places, 2240 transitions, 95237 flow [2022-12-13 12:05:43,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 135.58333333333334) internal successors, (1627), 12 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:05:43,579 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:05:43,579 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:05:43,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 12:05:43,579 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:05:43,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:05:43,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1221435642, now seen corresponding path program 4 times [2022-12-13 12:05:43,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:05:43,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299498709] [2022-12-13 12:05:43,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:05:43,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:05:43,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:05:44,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:05:44,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:05:44,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299498709] [2022-12-13 12:05:44,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299498709] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:05:44,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:05:44,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 12:05:44,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266737848] [2022-12-13 12:05:44,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:05:44,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 12:05:44,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:05:44,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 12:05:44,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-12-13 12:05:45,508 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 368 [2022-12-13 12:05:45,509 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 482 places, 2240 transitions, 95237 flow. Second operand has 12 states, 12 states have (on average 135.58333333333334) internal successors, (1627), 12 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:05:45,509 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:05:45,509 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 368 [2022-12-13 12:05:45,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:06:12,472 INFO L130 PetriNetUnfolder]: 13020/30618 cut-off events. [2022-12-13 12:06:12,472 INFO L131 PetriNetUnfolder]: For 1495278/1496227 co-relation queries the response was YES. [2022-12-13 12:06:12,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289825 conditions, 30618 events. 13020/30618 cut-off events. For 1495278/1496227 co-relation queries the response was YES. Maximal size of possible extension queue 986. Compared 324280 event pairs, 2736 based on Foata normal form. 243/30194 useless extension candidates. Maximal degree in co-relation 289639. Up to 17793 conditions per place. [2022-12-13 12:06:13,055 INFO L137 encePairwiseOnDemand]: 353/368 looper letters, 1614 selfloop transitions, 540 changer transitions 0/2542 dead transitions. [2022-12-13 12:06:13,055 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 2542 transitions, 108276 flow [2022-12-13 12:06:13,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 12:06:13,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 12:06:13,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2479 transitions. [2022-12-13 12:06:13,058 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3962595907928389 [2022-12-13 12:06:13,058 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2479 transitions. [2022-12-13 12:06:13,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2479 transitions. [2022-12-13 12:06:13,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:06:13,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2479 transitions. [2022-12-13 12:06:13,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 145.8235294117647) internal successors, (2479), 17 states have internal predecessors, (2479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:06:13,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 368.0) internal successors, (6624), 18 states have internal predecessors, (6624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:06:13,065 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 368.0) internal successors, (6624), 18 states have internal predecessors, (6624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:06:13,065 INFO L175 Difference]: Start difference. First operand has 482 places, 2240 transitions, 95237 flow. Second operand 17 states and 2479 transitions. [2022-12-13 12:06:13,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 498 places, 2542 transitions, 108276 flow [2022-12-13 12:06:39,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 490 places, 2542 transitions, 107731 flow, removed 50 selfloop flow, removed 8 redundant places. [2022-12-13 12:06:39,866 INFO L231 Difference]: Finished difference. Result has 499 places, 2296 transitions, 98501 flow [2022-12-13 12:06:39,867 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=94713, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=489, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1715, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=98501, PETRI_PLACES=499, PETRI_TRANSITIONS=2296} [2022-12-13 12:06:39,867 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 422 predicate places. [2022-12-13 12:06:39,867 INFO L495 AbstractCegarLoop]: Abstraction has has 499 places, 2296 transitions, 98501 flow [2022-12-13 12:06:39,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 135.58333333333334) internal successors, (1627), 12 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:06:39,868 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:06:39,868 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:06:39,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 12:06:39,868 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:06:39,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:06:39,868 INFO L85 PathProgramCache]: Analyzing trace with hash 646227886, now seen corresponding path program 5 times [2022-12-13 12:06:39,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:06:39,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498779873] [2022-12-13 12:06:39,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:06:39,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:06:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:06:40,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:06:40,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:06:40,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498779873] [2022-12-13 12:06:40,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498779873] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:06:40,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:06:40,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 12:06:40,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337194155] [2022-12-13 12:06:40,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:06:40,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 12:06:40,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:06:40,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 12:06:40,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-12-13 12:06:41,189 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 368 [2022-12-13 12:06:41,190 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 499 places, 2296 transitions, 98501 flow. Second operand has 12 states, 12 states have (on average 135.58333333333334) internal successors, (1627), 12 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:06:41,190 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:06:41,190 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 368 [2022-12-13 12:06:41,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:07:08,301 INFO L130 PetriNetUnfolder]: 13023/30547 cut-off events. [2022-12-13 12:07:08,302 INFO L131 PetriNetUnfolder]: For 1547790/1548899 co-relation queries the response was YES. [2022-12-13 12:07:08,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 295787 conditions, 30547 events. 13023/30547 cut-off events. For 1547790/1548899 co-relation queries the response was YES. Maximal size of possible extension queue 986. Compared 322997 event pairs, 2683 based on Foata normal form. 282/30193 useless extension candidates. Maximal degree in co-relation 295592. Up to 15757 conditions per place. [2022-12-13 12:07:08,888 INFO L137 encePairwiseOnDemand]: 350/368 looper letters, 1175 selfloop transitions, 943 changer transitions 0/2506 dead transitions. [2022-12-13 12:07:08,889 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 2506 transitions, 107925 flow [2022-12-13 12:07:08,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 12:07:08,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-13 12:07:08,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2896 transitions. [2022-12-13 12:07:08,892 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3934782608695652 [2022-12-13 12:07:08,892 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2896 transitions. [2022-12-13 12:07:08,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2896 transitions. [2022-12-13 12:07:08,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:07:08,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2896 transitions. [2022-12-13 12:07:08,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 144.8) internal successors, (2896), 20 states have internal predecessors, (2896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:07:08,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 368.0) internal successors, (7728), 21 states have internal predecessors, (7728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:07:08,899 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 368.0) internal successors, (7728), 21 states have internal predecessors, (7728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:07:08,899 INFO L175 Difference]: Start difference. First operand has 499 places, 2296 transitions, 98501 flow. Second operand 20 states and 2896 transitions. [2022-12-13 12:07:08,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 2506 transitions, 107925 flow [2022-12-13 12:07:35,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 2506 transitions, 107610 flow, removed 125 selfloop flow, removed 3 redundant places. [2022-12-13 12:07:35,705 INFO L231 Difference]: Finished difference. Result has 520 places, 2314 transitions, 101095 flow [2022-12-13 12:07:35,706 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=98202, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=926, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=101095, PETRI_PLACES=520, PETRI_TRANSITIONS=2314} [2022-12-13 12:07:35,707 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 443 predicate places. [2022-12-13 12:07:35,707 INFO L495 AbstractCegarLoop]: Abstraction has has 520 places, 2314 transitions, 101095 flow [2022-12-13 12:07:35,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 135.58333333333334) internal successors, (1627), 12 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:07:35,707 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:07:35,707 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:07:35,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 12:07:35,707 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:07:35,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:07:35,708 INFO L85 PathProgramCache]: Analyzing trace with hash -2010146450, now seen corresponding path program 6 times [2022-12-13 12:07:35,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:07:35,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324926031] [2022-12-13 12:07:35,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:07:35,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:07:35,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:07:36,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:07:36,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:07:36,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324926031] [2022-12-13 12:07:36,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324926031] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:07:36,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:07:36,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 12:07:36,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655968271] [2022-12-13 12:07:36,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:07:36,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 12:07:36,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:07:36,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 12:07:36,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-12-13 12:07:37,022 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 368 [2022-12-13 12:07:37,023 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 520 places, 2314 transitions, 101095 flow. Second operand has 12 states, 12 states have (on average 135.58333333333334) internal successors, (1627), 12 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:07:37,023 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:07:37,023 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 368 [2022-12-13 12:07:37,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:08:04,662 INFO L130 PetriNetUnfolder]: 13024/30569 cut-off events. [2022-12-13 12:08:04,662 INFO L131 PetriNetUnfolder]: For 1618492/1619694 co-relation queries the response was YES. [2022-12-13 12:08:05,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303066 conditions, 30569 events. 13024/30569 cut-off events. For 1618492/1619694 co-relation queries the response was YES. Maximal size of possible extension queue 982. Compared 323578 event pairs, 2671 based on Foata normal form. 313/30247 useless extension candidates. Maximal degree in co-relation 302865. Up to 15774 conditions per place. [2022-12-13 12:08:05,292 INFO L137 encePairwiseOnDemand]: 350/368 looper letters, 1335 selfloop transitions, 758 changer transitions 0/2481 dead transitions. [2022-12-13 12:08:05,292 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 536 places, 2481 transitions, 109749 flow [2022-12-13 12:08:05,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 12:08:05,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 12:08:05,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2468 transitions. [2022-12-13 12:08:05,295 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3945012787723785 [2022-12-13 12:08:05,295 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2468 transitions. [2022-12-13 12:08:05,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2468 transitions. [2022-12-13 12:08:05,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:08:05,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2468 transitions. [2022-12-13 12:08:05,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 145.1764705882353) internal successors, (2468), 17 states have internal predecessors, (2468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:08:05,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 368.0) internal successors, (6624), 18 states have internal predecessors, (6624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:08:05,301 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 368.0) internal successors, (6624), 18 states have internal predecessors, (6624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:08:05,301 INFO L175 Difference]: Start difference. First operand has 520 places, 2314 transitions, 101095 flow. Second operand 17 states and 2468 transitions. [2022-12-13 12:08:05,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 536 places, 2481 transitions, 109749 flow [2022-12-13 12:08:34,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 522 places, 2481 transitions, 108091 flow, removed 60 selfloop flow, removed 14 redundant places. [2022-12-13 12:08:34,580 INFO L231 Difference]: Finished difference. Result has 529 places, 2350 transitions, 102926 flow [2022-12-13 12:08:34,581 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=99510, PETRI_DIFFERENCE_MINUEND_PLACES=506, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=724, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1566, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=102926, PETRI_PLACES=529, PETRI_TRANSITIONS=2350} [2022-12-13 12:08:34,581 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 452 predicate places. [2022-12-13 12:08:34,581 INFO L495 AbstractCegarLoop]: Abstraction has has 529 places, 2350 transitions, 102926 flow [2022-12-13 12:08:34,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 135.58333333333334) internal successors, (1627), 12 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:08:34,582 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:08:34,582 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:08:34,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-13 12:08:34,582 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:08:34,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:08:34,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1514393904, now seen corresponding path program 7 times [2022-12-13 12:08:34,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:08:34,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169250010] [2022-12-13 12:08:34,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:08:34,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:08:34,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:08:35,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:08:35,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:08:35,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169250010] [2022-12-13 12:08:35,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169250010] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:08:35,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:08:35,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 12:08:35,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34310102] [2022-12-13 12:08:35,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:08:35,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 12:08:35,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:08:35,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 12:08:35,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-12-13 12:08:36,293 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 368 [2022-12-13 12:08:36,295 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 2350 transitions, 102926 flow. Second operand has 12 states, 12 states have (on average 135.58333333333334) internal successors, (1627), 12 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:08:36,295 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:08:36,295 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 368 [2022-12-13 12:08:36,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:09:06,552 INFO L130 PetriNetUnfolder]: 13043/30596 cut-off events. [2022-12-13 12:09:06,552 INFO L131 PetriNetUnfolder]: For 1680187/1681293 co-relation queries the response was YES. [2022-12-13 12:09:07,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306245 conditions, 30596 events. 13043/30596 cut-off events. For 1680187/1681293 co-relation queries the response was YES. Maximal size of possible extension queue 991. Compared 323623 event pairs, 2692 based on Foata normal form. 282/30241 useless extension candidates. Maximal degree in co-relation 306037. Up to 15781 conditions per place. [2022-12-13 12:09:07,136 INFO L137 encePairwiseOnDemand]: 350/368 looper letters, 1188 selfloop transitions, 982 changer transitions 0/2558 dead transitions. [2022-12-13 12:09:07,136 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 551 places, 2558 transitions, 112434 flow [2022-12-13 12:09:07,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 12:09:07,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-13 12:09:07,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3306 transitions. [2022-12-13 12:09:07,139 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3905954631379962 [2022-12-13 12:09:07,139 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3306 transitions. [2022-12-13 12:09:07,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3306 transitions. [2022-12-13 12:09:07,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:09:07,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3306 transitions. [2022-12-13 12:09:07,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 143.7391304347826) internal successors, (3306), 23 states have internal predecessors, (3306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:09:07,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 368.0) internal successors, (8832), 24 states have internal predecessors, (8832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:09:07,146 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 368.0) internal successors, (8832), 24 states have internal predecessors, (8832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:09:07,146 INFO L175 Difference]: Start difference. First operand has 529 places, 2350 transitions, 102926 flow. Second operand 23 states and 3306 transitions. [2022-12-13 12:09:07,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 551 places, 2558 transitions, 112434 flow [2022-12-13 12:09:35,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 2558 transitions, 111983 flow, removed 133 selfloop flow, removed 5 redundant places. [2022-12-13 12:09:35,973 INFO L231 Difference]: Finished difference. Result has 553 places, 2365 transitions, 105517 flow [2022-12-13 12:09:35,975 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=102491, PETRI_DIFFERENCE_MINUEND_PLACES=524, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=967, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=105517, PETRI_PLACES=553, PETRI_TRANSITIONS=2365} [2022-12-13 12:09:35,975 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 476 predicate places. [2022-12-13 12:09:35,975 INFO L495 AbstractCegarLoop]: Abstraction has has 553 places, 2365 transitions, 105517 flow [2022-12-13 12:09:35,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 135.58333333333334) internal successors, (1627), 12 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:09:35,975 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:09:35,975 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:09:35,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-13 12:09:35,976 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:09:35,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:09:35,976 INFO L85 PathProgramCache]: Analyzing trace with hash -219561538, now seen corresponding path program 8 times [2022-12-13 12:09:35,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:09:35,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400472517] [2022-12-13 12:09:35,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:09:35,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:09:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:09:36,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:09:36,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:09:36,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400472517] [2022-12-13 12:09:36,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400472517] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:09:36,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:09:36,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 12:09:36,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063564549] [2022-12-13 12:09:36,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:09:36,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 12:09:36,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:09:36,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 12:09:36,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-13 12:09:37,387 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 368 [2022-12-13 12:09:37,388 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 2365 transitions, 105517 flow. Second operand has 12 states, 12 states have (on average 135.58333333333334) internal successors, (1627), 12 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:09:37,388 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:09:37,388 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 368 [2022-12-13 12:09:37,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:10:08,150 INFO L130 PetriNetUnfolder]: 13070/30661 cut-off events. [2022-12-13 12:10:08,151 INFO L131 PetriNetUnfolder]: For 1755813/1756958 co-relation queries the response was YES. [2022-12-13 12:10:08,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312661 conditions, 30661 events. 13070/30661 cut-off events. For 1755813/1756958 co-relation queries the response was YES. Maximal size of possible extension queue 995. Compared 324305 event pairs, 2690 based on Foata normal form. 312/30337 useless extension candidates. Maximal degree in co-relation 312446. Up to 15825 conditions per place. [2022-12-13 12:10:08,849 INFO L137 encePairwiseOnDemand]: 350/368 looper letters, 1310 selfloop transitions, 841 changer transitions 0/2539 dead transitions. [2022-12-13 12:10:08,849 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 573 places, 2539 transitions, 114075 flow [2022-12-13 12:10:08,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 12:10:08,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-13 12:10:08,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3021 transitions. [2022-12-13 12:10:08,852 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.390916149068323 [2022-12-13 12:10:08,853 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3021 transitions. [2022-12-13 12:10:08,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3021 transitions. [2022-12-13 12:10:08,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:10:08,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3021 transitions. [2022-12-13 12:10:08,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 143.85714285714286) internal successors, (3021), 21 states have internal predecessors, (3021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:08,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 368.0) internal successors, (8096), 22 states have internal predecessors, (8096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:08,860 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 368.0) internal successors, (8096), 22 states have internal predecessors, (8096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:08,860 INFO L175 Difference]: Start difference. First operand has 553 places, 2365 transitions, 105517 flow. Second operand 21 states and 3021 transitions. [2022-12-13 12:10:08,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 573 places, 2539 transitions, 114075 flow [2022-12-13 12:10:39,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 561 places, 2539 transitions, 113003 flow, removed 42 selfloop flow, removed 12 redundant places. [2022-12-13 12:10:39,859 INFO L231 Difference]: Finished difference. Result has 568 places, 2385 transitions, 107245 flow [2022-12-13 12:10:39,860 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=104447, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=821, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1532, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=107245, PETRI_PLACES=568, PETRI_TRANSITIONS=2385} [2022-12-13 12:10:39,860 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 491 predicate places. [2022-12-13 12:10:39,860 INFO L495 AbstractCegarLoop]: Abstraction has has 568 places, 2385 transitions, 107245 flow [2022-12-13 12:10:39,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 135.58333333333334) internal successors, (1627), 12 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:39,861 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:10:39,861 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:10:39,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-13 12:10:39,861 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:10:39,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:10:39,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1817085124, now seen corresponding path program 9 times [2022-12-13 12:10:39,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:10:39,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112239099] [2022-12-13 12:10:39,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:10:39,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:10:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:10:40,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:10:40,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:10:40,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112239099] [2022-12-13 12:10:40,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112239099] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:10:40,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:10:40,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 12:10:40,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987329693] [2022-12-13 12:10:40,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:10:40,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 12:10:40,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:10:40,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 12:10:40,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-12-13 12:10:41,245 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 368 [2022-12-13 12:10:41,247 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 2385 transitions, 107245 flow. Second operand has 12 states, 12 states have (on average 135.58333333333334) internal successors, (1627), 12 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:10:41,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:10:41,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 368 [2022-12-13 12:10:41,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:11:12,521 INFO L130 PetriNetUnfolder]: 13092/30722 cut-off events. [2022-12-13 12:11:12,522 INFO L131 PetriNetUnfolder]: For 1836489/1837636 co-relation queries the response was YES. [2022-12-13 12:11:13,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316971 conditions, 30722 events. 13092/30722 cut-off events. For 1836489/1837636 co-relation queries the response was YES. Maximal size of possible extension queue 1001. Compared 325209 event pairs, 2678 based on Foata normal form. 296/30384 useless extension candidates. Maximal degree in co-relation 316749. Up to 15796 conditions per place. [2022-12-13 12:11:13,555 INFO L137 encePairwiseOnDemand]: 350/368 looper letters, 1321 selfloop transitions, 851 changer transitions 0/2560 dead transitions. [2022-12-13 12:11:13,555 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 588 places, 2560 transitions, 115562 flow [2022-12-13 12:11:13,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 12:11:13,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-13 12:11:13,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3020 transitions. [2022-12-13 12:11:13,558 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.39078674948240166 [2022-12-13 12:11:13,558 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3020 transitions. [2022-12-13 12:11:13,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3020 transitions. [2022-12-13 12:11:13,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:11:13,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3020 transitions. [2022-12-13 12:11:13,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 143.8095238095238) internal successors, (3020), 21 states have internal predecessors, (3020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:13,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 368.0) internal successors, (8096), 22 states have internal predecessors, (8096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:13,564 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 368.0) internal successors, (8096), 22 states have internal predecessors, (8096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:13,564 INFO L175 Difference]: Start difference. First operand has 568 places, 2385 transitions, 107245 flow. Second operand 21 states and 3020 transitions. [2022-12-13 12:11:13,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 588 places, 2560 transitions, 115562 flow [2022-12-13 12:11:45,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 578 places, 2560 transitions, 114592 flow, removed 68 selfloop flow, removed 10 redundant places. [2022-12-13 12:11:45,869 INFO L231 Difference]: Finished difference. Result has 587 places, 2411 transitions, 109246 flow [2022-12-13 12:11:45,870 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=106295, PETRI_DIFFERENCE_MINUEND_PLACES=558, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=825, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1542, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=109246, PETRI_PLACES=587, PETRI_TRANSITIONS=2411} [2022-12-13 12:11:45,870 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 510 predicate places. [2022-12-13 12:11:45,870 INFO L495 AbstractCegarLoop]: Abstraction has has 587 places, 2411 transitions, 109246 flow [2022-12-13 12:11:45,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 135.58333333333334) internal successors, (1627), 12 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:45,871 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:11:45,871 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:11:45,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-13 12:11:45,871 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 12:11:45,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:11:45,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1983729284, now seen corresponding path program 10 times [2022-12-13 12:11:45,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:11:45,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141831746] [2022-12-13 12:11:45,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:11:45,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:11:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:11:46,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:11:46,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:11:46,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141831746] [2022-12-13 12:11:46,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141831746] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:11:46,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:11:46,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 12:11:46,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981428884] [2022-12-13 12:11:46,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:11:46,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 12:11:46,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:11:46,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 12:11:46,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-13 12:11:47,300 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 368 [2022-12-13 12:11:47,300 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 587 places, 2411 transitions, 109246 flow. Second operand has 12 states, 12 states have (on average 135.58333333333334) internal successors, (1627), 12 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:11:47,300 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:11:47,301 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 368 [2022-12-13 12:11:47,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand